Answer:
i think it is a brain leist me if im right plz
Step-by-step explanation:
It C
A. 81
Combine fractions, that equals 2/5 in your exponent. Three to the 2/5 power is 81. So answer A.
$20/128 = 6.75/x
using cross products
20x=128*6.75
divide by 20
x =43.20
I used the calculator, so the answer may or,may not be, 125126.4
the answer i got was 0.214